Patent classifications
A61B17/7023
Fracture reduction using implant based solution
Various angularly-adjustable spinal fixation systems are provided and generally include an articulating connector having first and second elongate rods extending therefrom, and first and second polyaxial bone screw assemblies configured to seat the first and second rods therein. The rods are configured to be seated within receiver heads of the polyaxial bone screw assemblies when the screws are implanted in opposed lateral sides of a vertebra, thereby allowing the receiver heads to be manipulated relative to the rods to reduce one or more posterior fractures. A joint on the articulating connector can also be manipulated to reduce one or more anterior fractures. The entire construct can be locked to maintain the fractures in the reduced configuration.
Spinal implant and methods of use thereof
A spinal rod connector includes first and second arm assemblies and a fastener. The first arm assembly includes a first base portion and a first head portion defining a first slot configured to receive a first spinal rod. The first base portion includes a hook and an extension member including a housing. The second arm assembly is adjustable with respect to the first arm assembly. The second arm assembly includes a second base portion including a hook, a second head portion defining a second slot configured to receive a second spinal rod, and an elongate member extending from the second base portion. The elongate member is configured to be received in the housing of the first arm assembly. The elongate member is rotatable about an axis offset from a longitudinal axis of the housing. The fastener is configured to be received in the housing to secure the elongate member.
FRACTURE REDUCTION USING IMPLANT BASED SOLUTION
Various angularly-adjustable spinal fixation systems are provided and generally include an articulating connector having first and second elongate rods extending therefrom, and first and second polyaxial bone screw assemblies configured to seat the first and second rods therein. The rods are configured to be seated within receiver heads of the polyaxial bone screw assemblies when the screws are implanted in opposed lateral sides of a vertebra, thereby allowing the receiver heads to be manipulated relative to the rods to reduce one or more posterior fractures. A joint on the articulating connector can also be manipulated to reduce one or more anterior fractures. The entire construct can be locked to maintain the fractures in the reduced configuration.
BI-DIRECTIONAL MOTION SPINAL IMPLANT
A spinal implant includes first and second pedicle screws, each of which comprises a threaded shank coupled to a head. First and second cantilevered arms are coupled to the first and second pedicle screws, respectively. The first cantilevered arm includes a contact member arranged to contact and move over a contact portion of the second cantilevered arm.
Flexible spine components having multiple slots
An improved flexible component used for dynamic stabilization of spinal segments for the treatment of vertebrae deformities and injuries and for the replacement of a complete or segment of the body of a vertebra in the spine is described. The flexible component is comprised of a suitable implant material with a longitudinal bore the entire length and an appropriately formed slots that extend spirally around the flexible spinal element either continuously or segmentally. The flexible component can be encapsulated, fully or partially, in a suitable implant grade elastomeric resilient material. When used for a dynamic stabilization device, the element is attached to the vertebral bodies by pedicle screws know to those in the art.
Facet joint replacement devices
Devices and systems can be used to treating spinal conditions. For example, this document describes artificial facet joint systems that can be implanted to treat spinal conditions while facilitating normal stability and motions of the spine. Such systems and methods can be used to treat spinal conditions such as, but not limited to, spondylosis, vertebral fractures, and the like.
DUAL TETHER SUPPORT OF VERTEBRA
An apparatus includes a first flexible connector and a second flexible connector. The apparatus also includes a first bone anchor including a first tethering head configured to receive a first portion of the first flexible connector. The apparatus also includes a second bone anchor including a second tethering head configured to receive a second portion of the first flexible connector. The apparatus also includes a third bone anchor defining a first aperture configured to receive therethrough the first bone anchor. The third bone anchor also defines a first peripheral channel configured to receive a first portion of the second flexible connector. The apparatus also includes a fourth bone anchor defining a second aperture configured to receive therethrough the second bone anchor. The fourth bone anchor also defines a second peripheral channel configured to receive a second portion of the second flexible connector.
ADJUSTABLE-ANGLE SPINAL FIXATION ELEMENT
A spinal fixation device is provided having first and second elongate members that are angularly adjustable relative to one another. Each elongate member can include a connecting feature formed on a terminal end thereof, and each connecting feature can be coupled to one another to allow angular movement of the first and second elongate members. The device can also include a locking mechanism that is adapted to couple to the connecting feature on each of the first and second elongate members to lock the elongate members in a fixed position relative to one another.
HINGE-LINK SPINAL CORRECTION DEVICE AND METHOD
A device for spinal correction includes a stabilizer assembly including a hinge including a first rod-bearing leaf; a second rod-bearing leaf rotatably coupled to the first rod-bearing leaf to provide coronal or sagittal freedom of movement, or both, of the stabilizer assembly; a locking mechanism to lock the first and second rod-bearing leaves at a desired angle; a first stabilizing rod coupled to the first rod-bearing leaf; a second stabilizing rod coupled to the second rod-bearing leaf; and a plurality of monoaxial or polyaxial links, wherein each monoaxial or polyaxial link is movably coupled to the first or second stabilizing rod and is movably couplable to a first spinal rod or a second spinal rod fixed to the spine; wherein the stabilizer assembly is couplable to the first or second spinal rod to stabilize the spine to prevent compression, distraction, or translation of the spinal cord during a spinal correction.
Spinal Implant And Methods Of Use Thereof
A spinal rod connector includes first and second arm assemblies and a fastener. The first arm assembly includes a first base portion and a first head portion defining a first slot configured to receive a first spinal rod. The first base portion includes a hook and an extension member including a housing. The second arm assembly is adjustable with respect to the first arm assembly. The second arm assembly includes a second base portion including a hook, a second head portion defining a second slot configured to receive a second spinal rod, and an elongate member extending from the second base portion. The elongate member is configured to be received in the housing of the first arm assembly. The elongate member is rotatable about an axis offset from a longitudinal axis of the housing. The fastener is configured to be received in the housing to secure the elongate member.